The core principle of "fermented mattresses" is the high-efficiency in-situ degradation of poultry manure in cold regions developed by Harbin Food and Drug Inspection and Testing Center. It is understood that this technology was first produced in Japan and is currently only used in parts of southern China. The city's Food and Drug Inspection and Testing Center took the lead in applying this technology to Northeast China and achieved success. It has developed an in-situ composite degradation group for livestock manure that is suitable for alpine regions.
Not seeing dust, no more stench, and a faint scent of wine in a warm and moist pig house. On the thick "mattress" paved with straw slag and sawdust, dozens of clean and white The fat pigs are arching and admiring - this is what the reporter saw in the pilot pig farms of the Shanghai Food and Drug Administration. The technicians told the reporter that the odor-free taste of the pigsty lies in the “fermented mattress†under the pig. This “mattress†treated with special microbial flora can not only degrade the excreta and eliminate odors, but also create The temperature and humidity environment suitable for the growth of pigs allows pigs to be slaughtered half a month in advance.
Since last October, the city's Food and Drug Inspection and Testing Center has applied in-situ degradation of poultry manure to pigs in fermentation beds. In a fermented-bed pig house, live pigs live on this organic litter from birth, and their excrements are rapidly degraded, digested or transformed by microorganisms, eliminating the odor of the traditional pigsty. According to Dr. Honglin Wang, deputy director of the center, the “mattress†not only eliminates the odor of excreta and urine during the fermentation process, but also generates heat and water vapor with aroma, which can regulate the temperature and humidity of the pig house. According to the test, the internal temperature of the "mattress" is above 40 °C, and the surface temperature is maintained at about 12 °C all year round, which can greatly save the fuel cost of the pigs' winter insulation. The suitable environment can increase the immune system of pigs, greatly reduce pig diseases, and promote the growth of pigs. Finishing pigs of the same weight can be about half a month ahead of schedule and save 20% to 30% of feed. Because there is no need to flush the pigs, no waste is expelled from the farm and 60% to 80% of manual labor can be saved. After the pigs are slaughtered, the litter cleared out of the pens is a high-quality organic fertilizer, so as to achieve a high-efficiency, zero-emission, pollution-free "ecological pig" mode.
According to Cheng Yunzhi, director of the Municipal Food and Drug Administration, at present, the Bureau is planning to build a large-scale demonstration pig farm capable of accommodating nearly 1,000 pigs in Songbei District. It is expected to be completed in October this year.
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